Example #1
0
static int
ssh_session2(void)
{
	int id = -1;

	/* XXX should be pre-session */
	ssh_init_forwarding();

	if (!no_shell_flag || (datafellows & SSH_BUG_DUMMYCHAN))
		id = ssh_session2_open();

	/* If we don't expect to open a new session, then disallow it */
	if (options.control_master == SSHCTL_MASTER_NO &&
	    (datafellows & SSH_NEW_OPENSSH)) {
		debug("Requesting [email protected]");
		packet_start(SSH2_MSG_GLOBAL_REQUEST);
		packet_put_cstring("*****@*****.**");
		packet_put_char(0);
		packet_send();
	}

	/* Execute a local command */
	if (options.local_command != NULL &&
	    options.permit_local_command)
		ssh_local_cmd(options.local_command);

	/* Start listening for multiplex clients */
	muxserver_listen();

	if (options.use_roaming)
		request_roaming();

	return client_loop(tty_flag, tty_flag ?
	    options.escape_char : SSH_ESCAPECHAR_NONE, id);
}
Example #2
0
static int
ssh_session2(void)
{
	int id = -1;

	/* XXX should be pre-session */
	ssh_init_forwarding();

	if (!no_shell_flag || (datafellows & SSH_BUG_DUMMYCHAN))
		id = ssh_session2_open();

	/* If we don't expect to open a new session, then disallow it */
	if (options.control_master == SSHCTL_MASTER_NO &&
	    (datafellows & SSH_NEW_OPENSSH)) {
		debug("Requesting [email protected]");
		packet_start(SSH2_MSG_GLOBAL_REQUEST);
		packet_put_cstring("*****@*****.**");
		packet_put_char(0);
		packet_send();
	}

	/* Execute a local command */
	if (options.local_command != NULL &&
	    options.permit_local_command)
		ssh_local_cmd(options.local_command);

	/* Start listening for multiplex clients */
	muxserver_listen();

	/* If requested, let ssh continue in the background. */
	if (fork_after_authentication_flag) {
		fork_after_authentication_flag = 0;
		if (daemon(1, 1) < 0)
			fatal("daemon() failed: %.200s", strerror(errno));
	}

	return client_loop(tty_flag, tty_flag ?
	    options.escape_char : SSH_ESCAPECHAR_NONE, id);
}
Example #3
0
static int
ssh_session2(void)
{
	int id = -1;

	/* XXX should be pre-session */
	if (!options.control_persist)
		ssh_init_stdio_forwarding();
	ssh_init_forwarding();

	/* Start listening for multiplex clients */
	muxserver_listen();

 	/*
	 * If we are in control persist mode and have a working mux listen
	 * socket, then prepare to background ourselves and have a foreground
	 * client attach as a control slave.
	 * NB. we must save copies of the flags that we override for
	 * the backgrounding, since we defer attachment of the slave until
	 * after the connection is fully established (in particular,
	 * async rfwd replies have been received for ExitOnForwardFailure).
	 */
 	if (options.control_persist && muxserver_sock != -1) {
		ostdin_null_flag = stdin_null_flag;
		ono_shell_flag = no_shell_flag;
		orequest_tty = options.request_tty;
		otty_flag = tty_flag;
 		stdin_null_flag = 1;
 		no_shell_flag = 1;
 		tty_flag = 0;
		if (!fork_after_authentication_flag)
			need_controlpersist_detach = 1;
		fork_after_authentication_flag = 1;
 	}
	/*
	 * ControlPersist mux listen socket setup failed, attempt the
	 * stdio forward setup that we skipped earlier.
	 */
	if (options.control_persist && muxserver_sock == -1)
		ssh_init_stdio_forwarding();

	if (!no_shell_flag || (datafellows & SSH_BUG_DUMMYCHAN))
		id = ssh_session2_open();

	/* If we don't expect to open a new session, then disallow it */
	if (options.control_master == SSHCTL_MASTER_NO &&
	    (datafellows & SSH_NEW_OPENSSH)) {
		debug("Requesting [email protected]");
		packet_start(SSH2_MSG_GLOBAL_REQUEST);
		packet_put_cstring("*****@*****.**");
		packet_put_char(0);
		packet_send();
	}

	/* Execute a local command */
	if (options.local_command != NULL &&
	    options.permit_local_command)
		ssh_local_cmd(options.local_command);

	/*
	 * If requested and we are not interested in replies to remote
	 * forwarding requests, then let ssh continue in the background.
	 */
	if (fork_after_authentication_flag) {
		if (options.exit_on_forward_failure &&
		    options.num_remote_forwards > 0) {
			debug("deferring postauth fork until remote forward "
			    "confirmation received");
		} else
			fork_postauth();
	}

	if (options.use_roaming)
		request_roaming();

	return client_loop(tty_flag, tty_flag ?
	    options.escape_char : SSH_ESCAPECHAR_NONE, id);
}